Sheridan Grove Recovery Staff

Lawrence A. Vinson

Chief Executive Officer · RN, BSN, MBA, CHC

Lawrence A. Vinson, RN, BSN, MBA, CHC, is the Chief Executive Officer of Sheridan Grove Recovery in Aurora, CO, with more than 25 years of leadership across substance use treatment, behavioral health, inpatient psychiatric care, acute care, and healthcare quality and compliance. He started at the bedside. Lawrence worked as a medical-surgical charge nurse and cross-trained in intensive care and behavioral health before moving into quality and compliance leadership and then into executive operations. Prior to Sheridan Grove he served as Chief Executive Officer of a 40-bed inpatient psychiatric hospital, and before that as Chief Operating Officer and Chief Nursing Officer of an organization spanning 38 sites across 17 counties with more than 800 employees. Lawrence holds a Master of Business Administration and a Bachelor of Science in Nursing, is Certified in Healthcare Compliance, and has completed ASAM advanced training — a clinical, regulatory, and operational grounding that rarely sits in one person. At Sheridan Grove his focus is on accountable teams, patient safety, and keeping the facility ready for the standards it is held to.

Hillary Guggenheim

Director of Nursing · PMHNP-BC, MSN-MHA, MAP, RN

Hillary Guggenheim, PMHNP-BC, MSN-MHA, MAP, RN, is the Director of Nursing at Sheridan Grove Recovery in Aurora, CO. She brings more than 20 years of nursing experience spanning leadership, emergency and acute care, behavioral health, substance use treatment, correctional healthcare, and forensic nursing. She is a board-certified Psychiatric-Mental Health Nurse Practitioner with graduate education in nursing leadership and healthcare systems, healthcare administration, and psychology. Her focus as Director of Nursing is patient safety, regulatory compliance, quality, and developing the nurses on her team — and she is particularly drawn to behavioral health and substance use treatment, and to improving care through evidence-based practice. Hillary describes her leadership style as collaborative and hands-on. She values open communication, accountability, professional growth, and the perspectives of the people closest to patient care. Outside of work she travels — preferably anywhere near the ocean — sews, takes on home projects, and spends time with her very spoiled pets.

Tracy Polk

Human Resources Business Partner

Tracy Polk is the Human Resources Business Partner at Sheridan Grove Recovery in Aurora, CO, with more than 25 years in human resources. She has worked as an HR Coordinator, HR Director, and HR Business Partner, and holds an associate degree in business from the Community College of Denver and a bachelor's degree in business from the University of Denver. Her view of the work is straightforward: helping people builds trust, and trust builds stronger communities. You rarely know what someone is carrying, and being useful to them is reason enough to do the job well — that belief shapes how she supports the staff at Sheridan Grove, and through them, the patients those staff care for. Outside of work Tracy is happiest around good food, travel, and a household that includes three small dogs and a cat named Miracle.

Lindsay Dean

Regional Director of Compliance, Quality & Risk · BA, CAS

Lindsay Dean, BA, CAS, is Regional Director of Compliance, Quality & Risk, supporting treatment programs across the Alsos Behavioral Health network. She brings more than 10 years in behavioral health and is a Certified Addiction Specialist with a bachelor's degree in psychology and a minor in personal health. Lindsay began her career in direct patient care as a mental health technician, crisis intervention specialist, and counselor — experience that shaped her understanding of how trauma affects a person's willingness to engage with treatment, and that still informs how she approaches compliance work. As she moved into senior leadership her focus shifted to building treatment programs that hold clinical quality and regulatory integrity together rather than trading one for the other. She served as Program Director at one of the largest opioid treatment programs in Colorado, leading multidisciplinary teams and expanding access to care. Her work now spans accreditation, quality improvement, and risk management across the network's facilities.